public class Driver {
    public void run(Car car){
        car.run();
    }

   public void  run(BMW bmw){
        bmw.run();
    }
    public void run(QQ qq){
        qq.run();
    }
    public  void  run(Benz benz){
        benz.run();
    }
    public void run(Audi audi){
        audi.run();
    }
}
